GWeatherRouting enables sailors to plan optimal routes using GRIB weather files, boat polar diagrams, and isochrone calculations. Track creation, editing, and export features support safe and efficient navigation planning for coastal and offshore passages.

**Features:**

• Multi-point sailing weather routing
• Boat / polar integrated database
• Grib1 and Grib2 support, with downloader for OpenSkiron and NOAA GFS
• GPX support for importing and exporting POIs and tracks
• Session manager for storing POIs, tracks and routings
• Chart rendering for GeoJSON, GSHHS basemap, KAP,
  GeoTiff charts and other raster formats supported by GDAL,
  OpenSeaMap seamarks rendering and CM93 binary format
• Gtk4 interface
• NMEA instruments support
• NMEA / GPX log analysys